books.google.comhttps://books.google.com/books/about/A_collation_of_four_important_manuscript.html?id=trcCAAAAQAAJ&utm_source=gb-gplus-shareA collation of four important manuscripts of the Gospels with a view to prove their common origin and to restore the text of their archetype, by W.H. Ferrar, ed. by T.K. Abbott